Location History:
- Manhattan Beach, CA (US) (1977)
- Hollywood, CA (US) (1978)
Company Filing History:
Years Active: 1977-1978
Title: The Innovative Contributions of David B Hall
Introduction
David B Hall is a notable inventor based in Manhattan Beach, California. He has made significant contributions to the field of optics and laser technology, holding two patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of Hall's latest patents is the Near Infrared Laser Modulator. This invention involves a modulator for lasers that operate in the region between approximately 2 and 5 microns. The modulator utilizes a transparent ferroelectric ceramic known as PLZT, which is placed within the laser cavity. By applying an electric voltage to the crystal, it exhibits optical birefringence, affecting the quality factor (Q) of the laser cavity. Additionally, the design includes means for linearly polarizing the radiation and cooling the crystal with a gas that is transparent to the radiation.
Another significant patent is the Guided Wave Acousto-Optic Device. This device is designed to function as a correlator, convolution integrator, or Fourier transform device. It comprises a piezoelectric substrate, such as lithium niobate, covered by a thin outer layer with a higher index of refraction. Two acoustic transducers are positioned on opposite ends of the crystal to generate acoustic surface waves, allowing a laser beam to be guided through the outer layer. This setup enables the generation of correlation functions, Fourier transforms, or convolution integrals based on the signals applied.
Career Highlights
David B Hall has had a distinguished career, working at Trw Limited, where he has been able to apply his innovative ideas in practical applications. His work has contributed to advancements in laser technology and acousto-optic devices, making him a respected figure in his field.
Collaborations
Throughout his career, Hall has collaborated with notable colleagues, including Reynold S Kagiwada and William L Shackleford. These collaborations have likely enriched his work and contributed to the development of his patents.
Conclusion
David B Hall's contributions to the field of optics and laser technology are significant, as evidenced by his innovative patents. His work continues to influence advancements in these areas, showcasing the importance of creativity and technical skill in the world of invention.
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